Securely braces the DOF Adapter MK3, adding rigidity and stability to your Beastgrip Pro or Beastcage setup Standard 15mm rods for attaching follow focus, matte box, and other accessories Complete kit: includes 15mm rods, locking ring, and rod base Description Keep your mobile filmmaking rig locked and ready. The BeastRail Support adds a critical rigidity layer to your Beastgrip Pro universal rig or Beastcage camera cage, bracing the DOF Adapter MK3 to keep the entire assembly tight, stable, and aligned during use. The standard 15mm rods let you attach accessories like follow focus systems, matte boxes, and more. Precision-machined from 6061-T6 aluminum with a black anodized finish for precise fit and long-term durability. Package content BeastRail Support × 1 (complete kit including 15mm rods, DOF adapter locking ring, and rod base) Compatibility Beastgrip Pro, Beastcage for iPhone and Galaxy Ultra Beastgrip DOF Adapter MK3, DOF Adapter MK2 Specs Size: 210 × 107 × 137 mm (8.26 × 4.21 × 5.39 in) — adjustable Weight: 247 g (8.7 oz) Material: Machined 6061-T6 aluminum, black anodized finish Mounts: Three 1/4"-20 mounts + one 1/4"-20 screw mount Rod standard: 15mm (210mm / 8.25in long) .hidden-content { display: none; }